Greensmaster 3250--D
Page 5 -- 20
Electrical System
Backlap Switch
Thebacklapswitch is anormallyopenballswitch thatis
inthenormal,openstatewhenthebacklapleverisinthe
mow position. When the backlap lever is in the backlap
position, the switch closes. The backlap switch is at-
tached to the front of the hydraulic control manifold lo-
cated under the operator seat (Fig. 21).
Testing
1. Park machine on level surface, lower cutting units,
stop engine, apply parking brake and remove key from
ignition switch.
2. Make sure ignition switch is in the OFF position.
3. Raiseoperatorseattoallowaccesstohydrauliccon-
trol manifold. Locate the backlap switch on the front of
the manifold. D isconnect the wire harness electrical
connector from the backlap switch.
4. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the switch connector
terminals.
5. With the ignition switch in the OFF position, turn the
backlapleverto thebacklappositionwhilewatching the
multimeter.Continuityshouldbemadeasthes witchclo-
ses.
6. Turn the backlap lever to the mow position while
watchingthemultimeter.Continuityshouldbebrokenas
the switch opens.
7. If the backlap switch is faulty, replace switch. Make
sure that dowel and ball are placed in the manifold port
before installing new switch in manifold. Torque switch
to 20 ft--lb (27 N--m).
8. If the backlap switch tests correctly and a circuit
problem still exists, check wire harness (see Electrical
Schematic and Wire Harness Drawings in Chapter 9 --
Foldout Drawings).
9. After testing is completed, connect wire harness
electricalconnectortothebacklapswitch.Loweropera-
tor seat.
1. Backlap switch
2. Backlap lever
3. Ball
4. Dowel
5. O--ring
Figure 21
2
1
3
20 ft--lb
(27 N--m)
4
5
1
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